Radeon HD 3550 vs Radeon HD 6770

Radeon HD 3550
Memory: 512Mb DDR2DESKTOP
Release date: 4 Aug 2008
Radeon HD 3550
Radeon HD 6770
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Jan 2011
Radeon HD 6770

Summary

Reasons to consider Radeon HD 3550

78 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6770 .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6770

This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6770

HWBench recommends Radeon HD 6770

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 3550Radeon HD 6770
GPU NameRV620 (RV620 PRO)vsJuniper (Juniper XT)
Fab Process55 nmvs40 nm
Die Size67 mm²vs166 mm²
Transistors181 millionvs1,040 million
Shaders40vs800
Compute Units2vs10
Core clock594 MHzvs850 MHz
ROPs4vs16
TMUs4vs40

Memory Configuration

Radeon HD 3550Radeon HD 6770
Memory TypeDDR2vsGDDR5
Bus Width64 bitvs128 bit
Memory Speed396 MHz
792 MHz effective
vs1200 MHz
4800 MHz effective
Memory Size512 Mbvs1024 Mb

Additional details

Radeon HD 3550Radeon HD 6770
TDP30 wattsvs108 watts
Release Date4 Aug 2008vs21 Jan 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 3550
    2.38 GP/s
  • Radeon HD 6770
    13.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 3550
    2.38 GT/s
  • Radeon HD 6770
    34.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 3550
    6.34 GB/s
  • Radeon HD 6770
    76.80 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 3550
    47.52 GFLOPs
  • Radeon HD 6770
    1360.00 GFLOPs

GFLOPs - higher is better